Vehicle flame-retardant sound-insulation noise-reduction rubber pad and preparation method thereof

Abstract

The invention discloses a vehicle flame-retardant sound-insulation noise-reduction rubber pad and a preparation method of the flame-retardant sound-insulation noise-reduction rubber pad. The sound-insulation noise-reduction flame-retardant rubber pad is prepared from the following raw materials in percentage by weight: 20-30% of ethylene propylene diene monomer rubber; 10-20% of paraffin oil, 3-5%of hydrogenated C5 petroleum resin, 5-10% of conductive carbon black, 10-20% of a flame retardant, 10-30% of sepiolite, 10-30% of mica, 1-2% of zinc oxide, 0.5-1% of stearic acid, 0.5-1% of sulfur, 1.0-3.0% of a crosslinking aid, 1-3% of a foaming agent and 1-1.8% of an anti-aging agent. Compared with the prior art, the preparation method of the vehicle flame-retardant, sound-insulation noise-reduction rubber pad is simple; all the raw materials are matched for use and the dosage is controlled; the prepared rubber pad product can be foamed under the condition of 140 to 200 DEG C; in this way,when a vehicle passes through a coating workshop, foaming and filling of the rubber pad in a metal plate can be synchronously achieved on a coating line, then the effects of damping, noise reduction,sound insulation and flame retardance are achieved, and the rubber pad can be widely applied to filling and sealing of the metal plate of a vehicle engine compartment and other metal plate parts of the vehicle.

Description

technical field [0001] The invention belongs to the technical field of rubber, and in particular relates to a flame-retardant, sound-insulating and noise-reducing rubber pad for vehicles and a preparation method thereof. Background technique [0002] During the driving process of the vehicle, low-frequency noise is transmitted through structural vibration, while high-frequency noise is mostly transmitted to the interior of the cabin by air through holes and gaps in the vehicle body. In recent years, lightweight technology has developed rapidly. Lightweight body structure can improve power and reduce fuel consumption, but it will increase body vibration and improve interior noise levels, especially low-frequency structure-borne noise. [0003] Although the silent steel plate is widely used at present, the relatively heavy metal is not conducive to weight reduction, and it cannot be completely filled and fully composited between the two sheet metals, which cannot achieve the d...

AI Technical Summary

Problems solved by technology

Lightweight technology has developed rapidly in recent years. Lightweight body structure can improve power and reduce fuel consumption, but it will increase body vibration and improve interior noise levels, especially low-frequency structural noise

[0003] Although the silent steel plate is widely used at present, the relatively heavy metal is not conducive to weight reduction, and it cannot be completely filled and fully composited between the two sheet metals, which cannot achieve the damping and noise reduction effect, and the sound insulation effect is not ideal.

At present, there is no functional material that has low density, electrical conductivity, sound insulation, noise reduction, flame retardancy, and can suppress low-frequency vibration of the steel plate, and can be completely filled and sealed between two sheet metals.

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